Attachment for stoves



Aug. 15, 1933. v, cou s o 1,922,420

ATTACHMENT FOR STOVES Filed Feb. 17, 1932 INVENTOR fHRL V- ['UULETUN M M+M ATTORN EY Patented Aug. 15, 1933 I M v a r UNITED STATES PATENT, OFFICE ATTACHMENT FOR STOVES Earl V. coulstom cleveland, Ohio Application February 17, 1932. Serial No. 593,592

I q 1 claims. (o1; 12 -415) I This invention relatesto attachments for gas, chiefly contactingabovethe water line and with oil, gasoline and other stoves commonly prothe handles, which of course is objectionable.

vided with open grates positioned above their In order to avoid this loss of heat and at the cooking burners. same time prevent undue concentration at a 5 The general object of the invention is to prosingle point 01' area of the cooking vessel, I pro- 60 vide a fuel saving and heat equalizing attachvide atop plate Sand a collar like member 6, ment for stoves and ranges which can be readwhich-are respectively attached to the top and ily attached to and as easily removed from the bottom of the grate l by'meansof a pair of headed gratesof conventional open top stoves. bolts 7. Collar 6 which is preferably of substan-.

A further object of the invention is to provide I tially circular form, flares outwardly from its 65 an attachment for open top flame stoves which lower to its upper end and the latter end is per-, serves to protect the handles and sides of enamforatedas at 8 to receive the bolts 7. These bolts eled 'or other cooking vessels from burning pass through perforations 9 in the plate 5, thence and scorchingrespectively. T p between-the grate bars 9 and finally through 5 'A further. object of the invention isto proregistering openingsor perforations8in the collar 70 vide an attachment for open top flame stoves, member, nuts ;l0 being employed to clamp the 1 which is capable of being quickly assembled and parts tightly in place. H a v which includes means for automatically acceler- -The'lower. edge of collar 6 terminates in subating the flow of air into the combustion chamber stantially the horizontal plane of the top of or zone of the stove burner to facilitate comburner 2, and the'diameterof the, collar member 7 bustionwithcorresponding cut in fuel cost. 6 is slightlyrgreaterthan that of the area oc- Otherobjects and advantages will be apparcupied'by theburner. It should be noted here in ent from thefollowing descriptions and accomall stoves thedis tance between the burner and panying drawing, in-which: the top grate is standardized and that collar 6 I Figure 1 is a perspective view of the grate o is therefore applicable to all makes. Thus an Q. a stove showing the improved attachment asample space or passage 11 is provided between sembled therewithi J the burners and the collar for the admission of F e 2 is a fr m n y ection on the line suflicient air to the latter and to insure perfect i, 2- 0f Figure Showing the ative positions combustion. The central openingin burner-.2 pro- 0f the Stove burner to'the attachment; vides an additional air passage 12. The diverg- 85 Figure 3 S a p pective V ew Of t e top plate, ing walls of collar 6 form a restraining housing'or portion of the invention detached; and combustion chamber 13,which provides gradually Figure 4 is a perspective view ofthe collar increasing'room for the expanding products of member or portion of the'invention. combustion as well as restraint from too rapid Referring more particularly to the drawing 1 sidewise movement and a guiding channel or pasdenotes the grate of an open top stove and 2 sage for directing the heat to the most efiective the usual gas, oil, gasoline or other burners of point ofapplicationj r a conventional stove or range. The bars 3 of When heat is generated by lighting the burners such grates 1 are designed to offer minimum obit-will be noted that the impulse of the burner 40 struction or opposition to the burner flame, while action plus the actionof the heat within the collarv still serving to support any cooking vessel 4 or housing will result in an accelerated and much placed thereon, down to approximately three more positive upward motion of the gaseous mixinches in diameter, which is about the standard ture, than in'the case of an open burner, because minimum, the idea being to bring the heat of there is no drag from the surrounding atmosthe flame as directly and quickly as possible into phere. This causes air to flow faster to and 100 contact with the vessel above. Heretofore, it through theburner from below, which improves has been possible to accomplish this with fairly and intensifies combustion and results in a higher efficient results when the base of the cooking degree of heat. vessel being used was of considerablediameter, Plate 5, preferably of heavy cast metal consay about eight inches. However, the bases of struction and of circular shape, is also preferably the majority of cooking vessels in every day' of greater diameter than the housing or collar domestic use. are much less in width than eight member 6 to provide ample space 14 between the inches, and in consequence considerable heat upper flared end of member 6 and the downi passes up alongside the vessel and escapes into wardlyextending peripheral flange 15 and also to 'the air, some without any contactv and some aflord ample seating surface for cooking vessel 4.

The flange 15 rests upon and spaces the plate from the grate, and the top face of the plate, in

turn is adapted to support a cooking pot or pan,

as previously stated. Flange 15 also serves to 5 form in eiiect a reservoir from which escape of the hottest stratum of burner heat will be prevented or retarded. The course taken by the products of combustion is indicated by the arrows in Figure 2.

From the foregoing it will be seen that an unskilled person can readily install the attachment on any open top burner stove of conventional construction.

What I claim is:

1. An attachment for stoves with open top grates having bars with intervening spaces, comprising a truncated housing member and a flat member, and means extending through the spaces between said bars for interconnecting said members and seating same upon opposite sides of said top grate, whereby channels enclosed between the bars of said top grate and said members are formed, the channels communicating both with the interior of the truncated housing section and the outer air.

2. An attachment for stoves with open top grates having bars with intervening spaces, a housing member having both ends open, a flat member, and means extending through said top grates for interconnecting said members and drawing same flush against the top and bottom face of said top grate for forming channels between the top grate bars communicating with the interior of said housing section and with the outer air, said top plate having a depending flange outwardly spaced from the top of the housing.

3. An attachment for stoves with open top grates having bars with intervening spaces, an open ended housing member having an outwardly flaring upper end, a plate member, means extending through the spaces of said top grates for respectively connecting the plate member and the flared end of said housing member together and to opposite sides of said grate.

4. An attachment for stoves with open top grates having bars with intervening spaces, an open ended housing member having an outwardly flaring upper end, a plate member, readily removable means common to both of said members and extending through the spaces of said top grates for respectively connecting the plate member and the flared end of said housing member together and to opposite sides of said grate.

5. An attachment for stoves with open top grates having bars with intervening spaces, an open ended housing member having a contracted lower end, a flanged top plate member and means extending through the spaces of said top grates for connecting the said members to opposite faces of the stove grate, and with the contracted lower end of the housing member in line with but spaced outwardly from the burnerof the stove.

6. .An attachment for a flame burner cooking stove, comprising a housing of greater diameter than the burner, said housing extending upwardly in increasing diameter, a plate member positioned above said housing and of greater diameter than the upper end thereof, and means for interconnecting the plate member and housing in spaced relation for, forming a substantially annular channel communicating with the interior of said housing and the outer air.

7. In a stove with an open flame burner, a perforated cooking stove plate, a cone-shaped hollow housing open at opposite ends and'of greater diameter than said burner depending in inverted position from said plate in axial alignment with said burner, and a coverplate for saidhousing seated upon said cooking stove plate in spaced relation above and in axial alignment with said housing; said cover plate being of greater diameter than said housing to form an annular outlet passage between said housing and said cover plate.

EARL V. COULSTON. 

